Background: -Esophageal cancer is the most common cancer in Iran s Golestan Province. Nutritional deficiencies, ethnicity and environmental exposures might contribute to the development of this disease. Objectives: -To better understand the cause of esophageal cancer in Golestan Province and to reduce its occurrence there. Eligibility: -Adults from the Gonbad, Aq-Qala and Kalaleh districts of eastern Golestan Province in Iran. Design: * The study is a collaboration between NIH, the Digestive Disease Research Center of Teheran University of Medical Sciences, and the International Agency for Research on Cancer. * Participants complete a lifestyle questionnaire and food frequency questionnaire. * Samples of participants blood, urine, hair and toenail clippings are obtained.
Age range
30 Years – 99 Years
Sex
ALL
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
cancer incidence
Timeframe: continuous